Amines

For the given molecule, "x", the preferred site for the attack of the electrophile is : [figure]

1. Predominantly at "r"
2. "r" and "u"
3. "p" and "s"
4. Predominantly at "u"

Consider the three aromatic molecules (P, Q and R) whose structures have been given below : [figure] The correct order regarding the reactivity of these compounds with Ph- N N Cl under optimum but slightly acidic medium is :

1. P > Q > R
2. R > P > Q
3. R > Q > P
4. P > R > Q

Identify compounds A and E in the following reaction sequence. [figure]

1. A = [figure] E = [figure]
2. A = [figure] E = [figure]
3. A = [figure] E = [figure]
4. A = [figure] E = [figure]

Consider the following reactions sequence [figure] When the product (P) is subjected to Carius analysis using AgNO3, 1.0 g of the product (P) will produce g of the precipitate of AgBr. (Nearest Integer) (Given : molar mass in g mol-1 C : 12, H : 1, O : 16, N : 14, Br : 80, Ag : 108)

Consider the following reactions giving major product. Identify the correct reaction.

1. [figure]
2. [figure]
3. [figure]
4. H3CCH2- O \|C-NH2 + Br2 + 4 KOH (alc) H3CCH2NH2 + 2KBr + K2CO3 + 2H2O

A student performed analysis of an aliphatic organic compound 'X' which on analysis gave C = 61.01%, H = 15.25%, N = 23.74%. This compound, on treatment with HNO2/H2O, produced another compound 'Y' which did not contain any nitrogen atom. However, the compound 'Y' upon controlled oxidation produced another compound 'Z' that responded to iodoform test. The structure of 'X' is :

1. CH3-CH2CH(NH2)-CH3
2. CH3CH2CH2NH2
3. Ph-CH(CH3)-NH2
4. [figure]

Total number of alkali-insoluble solid sulphonamides obtained by reaction of given amines with Hinsberg's reagent is . Aniline, N-Methylaniline, Methanamine, N,N-Dimethylmethanamine, N-Methylmethanamine, Phenylmethanamine, N-Propylaniline, N-Phenylaniline, N,N-Dimethylaniline, Allylamine, Isopropylamine

1. 8
2. 5
3. 2
4. 4

The correct stability order of the following diazonium salts is [figure]

1. C > D > B > A
2. A > C > D > B
3. A > B > C > D
4. C > A > D > B

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below

1. Both Statement I and Statement II are false
2. Statement I is false but Statement II is true
3. Statement I is true but Statement II is false
4. Both Statement I and Statement II are true

Consider the following sequence of reactions. [figure] Assuming that the reaction proceeds to completion, then 137 mg of 4-nitrotoluene will produce mg of B. (Given molar mass in g mol-1 H : 1, C : 12, N : 14, O : 16, Br : 80)

1. 208
2. 228
3. 146
4. 301